College Physics (10th Edition)
10th Edition
ISBN: 9780321902788
Author: Hugh D. Young, Philip W. Adams, Raymond Joseph Chastain
Publisher: PEARSON
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Textbook Question
Chapter 16, Problem 33GP
You are designing a Carnal engine that has 2 mol of CO2 as its working substance; the gas may be treated as ideal. The gas is to have a maximum temperature of 527°C and a maximum pressure of 5.00 atm. With a heat input of 400 J per cycle, you want 300 J of useful work. (a) Find the temperature of the cold reservoir. (b) For how many cycles must this engine run to melt completely a 10.0 kg block of ice originally at 0.0°C, using only the heat rejected by the engine?
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A real (non- Carnot) heat engine, operating between heat reservoirs at temperatures of 450 K and 270 K performs 3.3 kJ of net work, and rejects 8.2 kJ of heat, in a single cycle. The thermal efficiency of this heat engine is closest to:
The efficiency of a Carnot cycle is 1/5. If on reducing the temperature of the cold bodyby 55°C, then the efficiency becomes 1/3, calculate the initial and final temperaturesbetween which the cycle is working.
(a) 412°C, 330°C(b) 139°C, 57.0°C(C) 110°C, 450°C(d) 190°C, 45.0
Chapter 16 Solutions
College Physics (10th Edition)
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